President Trump has repeatedly promised to support coal despite plummeting costs of cleaner fuels including natural gas, wind and solar

The Trump administration is escalating an effort to revive the flagging U.S. coal industry with a planned move next week to replace restrictive Obama-era climate policies with new rules designed to help coal-burning plants run harder and stay open longer.

The proposed new rules, which the Environmental Protection Agency plans is expected to release within days, would be the latest in a series of reversals of policies the Obama administration adopted to slow climate change. It would replace the agency’s so-called Clean Power...